基于FPAA的自修复智能无线传感器节点

针对无线传感器网络自身的可靠性和维护问题,提出了一种基于FPAA(field programmable analog arrays)的自修复智能无线传感器节点的实现方法.该方法以FPAA为核心构成传感器的主要信号调理电路,节点设计有硬件故障自诊断功能,在节点部分硬件模块发生故障的情况下,可修复相应故障,确保节点在无人职守及野外应用时的可靠性,避免节点的直接丢弃.重点介绍了自修复节点的实现方法、软硬件研发并对节点进行了自修复实验研究,分析了自修复节点的功耗及可工作时间,节点能够在2节具有1700 mAh的AA电池的供电下工作半年时间.

FPAA based self-repairing wireless sensor network node

This paper focuses on the reliability and maintenance problems of wireless sensor network,and presents a field programmable analog arrays(FPAA) based wireless sensor networks(WSNs) node self-repairing method.This method takes FPAA as the core to construct the signal conditioning circuit of the sensor in a wireless sensor networks node.Hardware fault diagnosis function is implemented in the design of this kind of nodes,with which the node can self-diagnose its hardware faults and repair itself with the self-organization ability of the FPAA chip.This method can ensure the node reliability in unattended service and outdoor applications.This paper introduces the realization method of the self-repairing node,and the software and hardware implementation.The experimental evaluation of the self-repairing function was carried out.The power consumption and service life of the developed self-repairing node are analyzed which shows that the node can be used for 6 months with two 1 700 mAh AA batteries.